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Thanks for the answers Rachel, Annie, and Donnie!
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71.True x independent variable
y dependent variable
Correct
72. True
what about f(x)=0?
Correct - Justification would be that a graph that is
symmetric with respect to the x-axis would fail the
vertical line test for a function.
73. B
c
I would agree with B if we let the decimal for temperature
have an infinite number of decimal places.
74. C
Correct - # of balls is always an integer.
75. C
correct
76. A
why is it a?
I choose C because any one particular driving speed can
determine more than one amount of time ... for example,
you might be driving 60 MPH on cruise control for one hour
straight which would plot a series of points that all fall upon
the same vertical line ... hence, it's not even a function!
Thanks for the answers Rachel, Annie, and Donnie!
y dependent variable
symmetric with respect to the x-axis would fail the
vertical line test for a function.
have an infinite number of decimal places.
determine more than one amount of time ... for example,
you might be driving 60 MPH on cruise control for one hour
straight which would plot a series of points that all fall upon
the same vertical line ... hence, it's not even a function!